/* =====================================================================
   Error Page Builder Pro — app.css
   App-specific layout on top of the shared base.css design system.
   ===================================================================== */

/* ----- Theme toggle icon swap (sun in dark, moon in light) ----- */
[data-theme-toggle] .i-moon { display: none; }
[data-theme="light"] [data-theme-toggle] .i-sun { display: none; }
[data-theme="light"] [data-theme-toggle] .i-moon { display: block; }

.brand .sub { display: block; }

/* =====================================================================
   Workspace: editor (left) + preview (right)
   ===================================================================== */
.workspace {
  display: grid;
  grid-template-columns: minmax(0, 420px) minmax(0, 1fr);
  gap: var(--space-6);
  align-items: start;
  padding-bottom: var(--space-10);
}

/* Editor panel becomes a sticky-ish scroll column on desktop */
.editor {
  position: sticky;
  top: 84px;
  max-height: calc(100vh - 104px);
  overflow-y: auto;
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.ed-block { display: flex; flex-direction: column; gap: var(--space-3); }
.ed-h { margin: 0; font-size: .8rem; text-transform: uppercase; letter-spacing: .06em; color: var(--text-muted); font-weight: 700; }
.editor hr { margin: var(--space-2) 0; }

.grid-2 { grid-template-columns: 1fr 1fr; }
.grid-3 { grid-template-columns: 1fr 1fr 1fr; }

.toggle-row { font-size: 14px; font-weight: 500; color: var(--text); }

/* Color inputs */
input[type=color] {
  -webkit-appearance: none; appearance: none;
  width: 100%; height: 40px; padding: 4px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-md); cursor: pointer;
  transition: border-color var(--dur-1), box-shadow var(--dur-1);
}
input[type=color]:hover { border-color: var(--border-strong); }
input[type=color]:focus-visible { outline: none; border-color: var(--brand-500); box-shadow: 0 0 0 3px rgba(99,102,241,.18); }
input[type=color]::-webkit-color-swatch-wrapper { padding: 0; }
input[type=color]::-webkit-color-swatch { border: none; border-radius: 8px; }
input[type=color]::-moz-color-swatch { border: none; border-radius: 8px; }
.color-grid label { font-size: 12px; }

.quick-presets .btn { flex: 1; min-width: 64px; }

/* Deploy tips */
.deploy-tips {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  overflow: hidden;
}
.deploy-tips summary {
  display: flex; align-items: center; gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  cursor: pointer; font-weight: 600; font-size: 14px; color: var(--text);
  list-style: none; user-select: none;
}
.deploy-tips summary::-webkit-details-marker { display: none; }
.deploy-tips summary svg { width: 16px; height: 16px; color: var(--brand-400); }
.deploy-tips[open] summary { border-bottom: 1px solid var(--border); }
.deploy-body { padding: var(--space-3) var(--space-4) var(--space-4); font-size: 13.5px; }
.deploy-body ul { margin: 0 0 var(--space-3); padding-left: var(--space-5); display: flex; flex-direction: column; gap: var(--space-2); }
.deploy-body code { background: var(--surface-3); padding: 1px 6px; border-radius: 6px; font-size: 12px; }
.deploy-body p { margin: 0 0 var(--space-3); }
.deploy-body p:last-child { margin: 0; }

/* =====================================================================
   Browser-frame preview
   ===================================================================== */
.preview-pane { display: flex; flex-direction: column; gap: var(--space-3); position: sticky; top: 84px; }

.browser-frame {
  overflow: hidden;
  padding: 0;
  box-shadow: var(--shadow-lg);
}
.browser-bar {
  display: flex; align-items: center; gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
}
.traffic { display: inline-flex; gap: 7px; flex: none; }
.traffic i { width: 12px; height: 12px; border-radius: 50%; background: var(--border-strong); }
.traffic i:nth-child(1) { background: #ff5f57; }
.traffic i:nth-child(2) { background: #febc2e; }
.traffic i:nth-child(3) { background: #28c840; }
.url-bar {
  flex: 1; min-width: 0;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-full); padding: 6px 14px;
  font-size: 12.5px; color: var(--text-secondary);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.frame-actions { flex: none; }
.refresh-btn { width: 32px; height: 32px; }
.refresh-btn svg { width: 15px; height: 15px; }

#previewFrame {
  display: block; width: 100%;
  height: clamp(520px, calc(100vh - 220px), 760px);
  border: 0; background: #0b1020;
}
.preview-hint { margin: 0; font-size: 12.5px; }

/* =====================================================================
   Shortcuts modal table
   ===================================================================== */
.sc-table { width: 100%; border-collapse: collapse; }
.sc-table td { padding: 10px 4px; border-bottom: 1px solid var(--border); font-size: 14px; }
.sc-table tr:last-child td { border-bottom: none; }
.sc-table td:last-child { text-align: right; white-space: nowrap; }
.sc-table kbd + kbd { margin-left: 4px; }

/* =====================================================================
   Mobile Edit/Preview toggle visibility
   ===================================================================== */
.hide-lg { display: none; }

@media (max-width: 940px) {
  .workspace { grid-template-columns: 1fr; }
  .editor {
    position: static; max-height: none; overflow: visible;
    top: auto;
  }
  .preview-pane { position: static; top: auto; }
  .hide-lg { display: inline-flex; }

  /* In mobile, only one pane shows at a time */
  .workspace[data-view="edit"] .preview-pane { display: none; }
  .workspace[data-view="preview"] .editor { display: none; }

  #previewFrame { height: clamp(480px, 70vh, 680px); }
}

@media (max-width: 480px) {
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .color-grid .field:last-child { grid-column: 1 / -1; }
  .brand .sub { display: none; }
}